#8959: PDFfile->save() doesn't use the checkbox value of Use Document Bleeds

git-svn-id: file:///svn/Scribus/trunk/Scribus@19693 11d20701-8431-0410-a711-e3c959e3b870
refactoring of ShadeButton::setValue()

git-svn-id: file:///svn/Scribus/trunk/Scribus@19694 11d20701-8431-0410-a711-e3c959e3b870
fix inconsistent line endings

git-svn-id: file:///svn/Scribus/trunk/Scribus@19695 11d20701-8431-0410-a711-e3c959e3b870